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Answer :
The rejection region is z < -1.64 and z > 1.64.
The correct option is A.
In this case, α = 0.10, which means we need to allocate 0.10/2 = 0.05 to each tail of the distribution.
Now, the z-value for the upper tail is 1.645 and the z-value for the lower tail is -1.645.
Therefore, the rejection region would be z < -1.645 and z > 1.645.
Thus, the rejection region is z < -1.64 and z > 1.64.
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Answer:
z < -1.64 and z > 1.64
Step-by-step explanation:
See section 9.2 Testing Hypotheses about a Population Mean using the z Statistic